Fist to Fist (1973)

After a mission goes wrong, only one of a group of mercenaries is left alive to avenge his fallen brothers.

Adopted by a renowned swordsmith, a young man discovers that his biological father was killed by a powerful bandit called Lung. Leaving to seek revenge, he runs afoul of vicious desert scum, losing his right arm in the process. After being nursed back to health, he learns to compensate for his loss and returns to confront Lung.

A reformed sociopath heads to a remote island after the death of his brother. Soon after his arrival, the island falls under siege from a deadly gang of mercenaries, and when he discovers their role in his brother’s demise, he sets out on a relentless quest for vengeance.

While on a hunting trip in the isolated wilderness, a father and his adopted teenage son are turned into the prey of unknown assailants. They are unexpectedly joined in their fight for survival by a stranger who reveals the disturbing truth about the son's biological father, an international crime lord, and why that crime lord has sent trained assassins to kill the teenager.

An amateur fighter is lured by a trafficking syndicate specializing in elite underground fighting where her brutal captor forces her to fight or face certain death.

An aging ex-boxer gangster working as muscle for a Boston crime boss receives an upsetting diagnosis. Despite a faltering memory, he attempts to rectify the sins of his past and reconnect with his estranged children. He is determined to leave a positive legacy for his grandson, but the criminal underworld isn’t done with him and won’t loosen their grip willingly.

When his aging mob boss is whacked, Charlie Swift, a loyal friend and hired gun, will stop at nothing to destroy the upcoming crew that took him out.

Following his defeat by Master Ip, Cheung Tin Chi tries to make a life with his young son in Hong Kong, waiting tables at a bar that caters to expats. But it's not long before the mix of foreigners, money, and triad leaders draw him once again to the fight.

The eldest son of a ruthlessly tough MMA champion must fight his way out of the abusive cycle his father has continued.

While working as an EMT back stateside Jake Carter after responding to a distress call, finds himself caught up protecting a person of interest from a biker gang ruthlessly hunting them down.